HS402 DIY Oscilloscope V1.7 - EasyEDA open source hardware lab

Std edition HS402 DIY Oscilloscope V1.7

STM32
DIY

Profile：HS402 is an USB Oscilloscope working with STM32F411 development board.

License: CERN Open Hardware License

Published Time: 2022-08-08 15:30:18

1.5w
1
26
32

Description

A 2 Channel DIY Oscilloscope based on STM32F4x1 Black Pill development board. It provide long memory buffer and high real-time transfer speed. As the HS10X series it keep the best ratio performance/cost/ease to build.

Power consumption is also one of the lowest in the market (~40mA). It can be used only with HScope app for Android.

Other

Official project page

Disclaimer

This is an old version of the PCB board. Please check on Github the latest v2.0 or v3.0.

design drawing

schematic diagram

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HS402 PRO Black Pill V1.7
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PCB

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HS402 PRO Black Pill - V1.7
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BOM

BOM download Purchase Parts

ID	Name	Designator	Footprint	Quantity
1	BAV99	D1,D2	SOT23-3	2
2	20pF var	C1,C5	C1210	2
3	910K	R2,R6	C0805	2
4	MCP6S21	U1,U3	SOP-8_L4.9-W3.9-P1.27-LS6.0-BL	2
5	100K	R3,R7	C0805	2
6	47pF	C3,C7	C0805	2
7	BNC	P2,P5	BNC_SOCKET_TYCO-AMP	2
8	100nF	C2,C6,C4	C0805	3
9	AQY210EH	K1,K2	AQY210 SDIP-4	2
10	1K	R1,R5,R8	C0805	3
11	Header 4	OUT	HDR1X4	1
12	Header 5	IN	HDR1X5	1
13	REF2033	U4	SOT23-5	1
14	AMS1117-1.2	U2	SOT-223_L6.5-W3.5-P2.30-LS7.0-BR	1
15	1K	R9	VR5	1
16	47uF	C8	C0805	1
17	470nF	C9	C0805	1
18	Header 2	SP,PWM	HDR-F-2.54_1X2	2
19	STM32 BlackPill STM32F411 MIN PINS	MCU	STM32F411 BLACKPILL USB-C REDUCED PINS	1